Smart Ultrasonic Mosquito Repellent Bracelet

Pure physical mosquito repellent, free of chemical drugs, safer and more environmentally friendly. Old people, children, pregnant women and pets can be worn, easy to carry, indoors and outdoors (seaside, park, camping, hiking, fishing, etc.) Features: Efficiently drive 90% of mosquitoes Simulate specific sound frequencies Fast charging, charging once for 130 hours Can work for 130 hours, standby for 1 month, long-term batter life The bracelet rings through the hateful sounds of the female square mosquito, such as the male mosquito, the sound of the dragonfly, and the mosquito repellent effect. Waterproof design: Fine structure design, to achieve life waterproof, hand washing rain will not enter